Weather on March 31
San Bernardino, CA
55 Years of Data
About This Date
March 31st in San Bernardino, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 49 years of records, the warmest March 31st was in 2011 (75°F average), while the coldest was 1977 (48°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 6% of March 31st dates historically, with the wettest March 31st recording 3.53" of rain.
Planning for March 31st in San Bernardino, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 77° | 59° | 68° | — | — |
| 2025 | 68° | 54° | 61° | — | — |
| 2017 | 70° | 49° | 59° | — | — |
| 2016 | 71° | 42° | 57° | — | — |
| 2015 | 81° | 54° | 67° | — | — |
| 2014 | 70° | 46° | 58° | — | — |
| 2013 | 72° | 48° | 60° | — | — |
| 2012 | 64° | 48° | 56° | — | — |
| 2011warmest | 94° | 56° | 75° | — | — |
| 2010 | 58° | 49° | 53° | — | — |
| 2009 | 76° | 42° | 59° | — | — |
| 2008 | 69° | 46° | 58° | — | — |
| 2007 | 85° | 44° | 64° | — | — |
| 2006 | 52° | 45° | 48° | — | — |
| 2005 | 76° | 45° | 60° | — | — |
| 2004 | — | 49° | — | — | — |
| 2003 | 88° | 50° | 69° | — | — |
| 2002 | 85° | 46° | 65° | — | — |
| 2001 | 81° | 50° | 65° | — | — |
| 2000 | 75° | 51° | 63° | — | — |
| 1999 | 57° | 47° | 52° | — | — |
| 1998 | 59° | 44° | 52° | — | — |
| 1997 | 65° | 54° | 59° | — | — |
| 1996 | 78° | 41° | 60° | — | — |
| 1995 | 77° | 42° | 60° | — | — |
| 1994 | 80° | 50° | 65° | — | — |
| 1993 | 76° | 47° | 61° | — | — |
| 1992 | 60° | 52° | 56° | 0.33" | — |
| 1991 | 76° | 43° | 59° | — | — |
| 1990 | 69° | 49° | 59° | — | — |
| 1989 | 86° | 53° | 70° | — | — |
| 1988 | 70° | 54° | 62° | — | — |
| 1987 | 83° | — | — | — | — |
| 1986 | 79° | 55° | 67° | — | — |
| 1985 | 84° | 42° | 63° | — | — |
| 1984 | 64° | 44° | 54° | — | — |
| 1983 | 79° | 49° | 64° | — | — |
| 1982 | 65° | 40° | 52° | — | — |
| 1981 | 81° | 43° | 62° | — | — |
| 1980 | 71° | 44° | 58° | — | — |
| 1979 | 75° | 41° | 58° | — | — |
| 1978 | 62° | 50° | 56° | 3.53" | — |
| 1977coldest | 60° | 36° | 48° | — | — |
| 1976 | 80° | 45° | 62° | — | — |
| 1975 | 71° | 40° | 55° | 0.03" | — |
| 1974 | 69° | 49° | 59° | — | — |
| 1973 | 60° | 47° | 53° | — | — |
| 1972 | 82° | 40° | 61° | — | — |
| 1971 | 85° | 50° | 67° | — | — |
San Bernardino, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Bernardino, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Bernardino, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Bernardino, CA
San Bernardino, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.